Stove or range.



698,'796. Patented Apr. 29, I902.

E. R. CAHOONE.

STOVE 0R RANGE.

(Application filed Feb. 4, 1897. (No Model.) 7 3 Sheets-Sheet I.

E] wue/wiiop alibi-"Md Patented Apr. 29, 1902. E. n. CAHOONE. STOVE-OBRANGE.

(Application-filed Feb. 4, 1897.)

(No Model.)

3 Sheets-Sheet 2,

ummmm Patented Apr. 29, I902.

EVE. CAHOONE. STOVE 0R RANGE. (Application filed Fab, 4, 1897.)

(N0 Model.)

I NITED STATES PATENT OFFICE.

EDWIN R. OAHOONE, OF NEWARK, NEW JERSEY.

STOVEJOR RANGE.

srEoIFIoA'rIoN formingpart of treatment N6. 698,796, dated April 29,1902'.

V Application filed February 4, 1897- Serial N01 621,994. (No model.)

To all whom. it may concern:

Be it known that I, EDWIN R. CAHOONE, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Improvementsin Stoves or Ranges, ofwhich the following is a specification.

My invention relates to improvements ix stoves or ranges, and especiallysuch as are illustrated and described in myfo'rmer United Statespatents, No. 540,716, June 11, 1895, and No. 550,865, December 3, 1895.In these patents I have for purposes of illustration shown my inventionapplied to cookingstoves, and the cooking-stoves shown are adapted forproducing substantially complete combustion of coals richin hydrocarbonsand for this purpose comprise an air-duct depending from the top of thestove and'dividing the stove-chamber into a fuel-magazine in front and aflue to the rear of said duct. Thus a contracted neck-is formedat thebottom of the rear side of the fire-box, and combustion of the fuel isat this point completed by'means of a plentiful supplyofhot airdischarged at this point from'the pendent heated-airduct or partition.In addition various other means are shown for supplying-the air tothefuel at the points most needed for combustion.-

In my present invention the general'construction of thes tovefis'ofthe'chfara'cter described in my said p at'en ts'; but I have devisedvarious improvements in the details thereof whichhave for-their objectto render the stove or range more'du'rable to resist the action of.intense heat, more economical in the original cost of manufacture,more-easily put together and taken. apart, and'having, moreover, novelfeatures of construction adding to its general convenience and utility.

' Inthe accompanying drawings, Figure l is a longitudinalverticalsection of the stove, taken on the'line m on of'Fig. 2.' -Fig. 2 is ahorizontal sectionof the stove, taken on the line y y of Fig. 1. Fig. 3is a front view. Fig. tis a top plan view of the same. Fig. 5

is a detail perspective view of the air-duct and its attachments. Fig. 6is a perspective view of the front portion of'the stove open.

Fig. 7 isa perspective View of a portion of the inner surface of asideof the stove and a portion of the air-duct adjacent thereto, showing themeans for inonntiug the latter. Fig.

8 is a perspective view of the rear section of the air-diict. Fig. 9 isa similar view of the front section, and Fig. 10 is a similar view of amodification thereof. Fig. 11 is a view of the air-duet shield orburner-plate. Fig.

12 is a perspective view of the shoe detached.

Fig. 13 is a View ofone section of said shoe. 6o 'Fig. 13 shows twotransverse sections thereof. Figs. 14 and 14 show my preferred form ofshoe-tip. Figs. 15 and 16 show as modifications continuous tipsextending the length -of the shoe. Fig. 17 is a cross-section of theair-duct as a whole. plate of the fire-box.

A represents the-fuel-maga'zine; B, the pendent air-duct; O, the flue atthe back of said duct; D,the'fiue over the oven; E, the oven; F, the bedon which the fuel rests; G, the ash-box; H, the ash-pan in'said box; I,thestove=top or -'topjp1ate in which are the FigplS shows an end usualpot-holes.

J-is the flue under the oven. K is the collarto receive the stovepipe.

L is the charging-door for supplying fuel tothe magazine A.

M is the hinged stove front-as a whole. .Nis the swingingremovablehearth plate. 8o O is the concave back wall of the flue G, and

P is the water-back,- which forms the upper part of'said-b ack wall. g

The term F f uel-magazine as used throughout this descriptionand theclaimsis intended to refer to afuel-magazine as generally undersltood ortofafire-pot. I

The air-duot or partition B is in my improved stove supported not fromthe top plate'of the stove, but from the sides 1 thereof, and for thispurpose I provide on the inner surfaceof each side, as shown in Fig. 7,two flanges 2 3, ofwhich the flange 2 extends down the whole front ofthe air-duct, around the bottom'thereof'and up the rear to about 5one-half the'height of the duct, and the other, 3, extends in a slantingdirection, as shown, for the remainder of the height. Within the flange2 and without the flange 3, and 'thus resting on both flanges ofeach'sideof the loo stove, is supported the rear section 4 of theair-duct, and within the front portion of the flange 2 is also supportedthe front section 5 thereof. Air is admitted to the interiorof theair-duct from the sides of the stove through apertures therein, and forthis purpose Ipreferably provide removable apertured plates 6, fittingin the sides of the stove opposite to the ends of the air-duct, as shownin Fig. 1. The sections 4 5 of the air-duct are provided with ribs 1 5,disposed parallel with the sides and at a distance therefromcorresponding to the width of the flanges 2 3 on the sides of the stove.Each duct-section is cut away at its lower portion, as clearly shown inFigs. 8, 9, 10, and it will be seen that when said sections are laid inor on the flanges the lower ends of the vertical edges of the sectionsmeet, and the sections are held in place without bolting or riveting,but solely by the configuration of the flanges on which they rest. Whenso put together, the cut-away portions at the bottom are adapted toreceive a shoe 7, which is also formed in two sections, as clearly shownin Fig. 12, and is provided with shoe-tips 8. When said tips have beeninserted between said shoe-sections, the sections are secured together,preferably by means of nuts 9 and screws 10, the latter passing throughregistering holes in lugs 11 12, extending inwardly and upwardly fromthe shoe-sections. Upon the back of the rear shoe-section adjacent tothelugs 12 are provided socket-pieces 13, having concave sockets 14,which register with and are adapted to rest against round short rod-likeprotuberances 15, extending from the inner surface of the rearduct-section. Extending upwardly from the front shoe-section are lugswith apertures 16, and in thelower edge of the front duct-section areholes 17, which register with the holes 16. By inserting nails in theregistering holes 16 17 the shoe '7 is held to the duct against verticaldisplacement,

while the engagement of the protuberance with the sockets -1 1 alsoholds the shoe against vertical displacement.

Jpon the front air-duct section 5 is supported a shield or burner-plate18. (Minstrated in detail in Fig. 11.) Said shield is secured to thefront air-duct section 5 by means of a log 19 on the duct-sectionpassing through a hole in the burner-plate and being there secured by anail, the lower edge of said shield resting on a ledge or shoulder 20 ofthe shoe.

I will now describe in detailthe construction of these parts whereby airis freely admitted through the air-duct to the point of completecombustion.

The stove plate or top 1 has a row of holes 21, which admit air to theduct from the top, and, as has been before stated, air is or can beadmitted from the sides between the flanges 2 3. The portion of thefront duct-section underlying the shield may either have a single largehole therethrough, as shown in Fig. 9, or may have numerous smallperforations 22, as shown in Fig. 10. The latter construction is to bepreferred with fuel which burns quickly and with great heat. The formerconstruction leaves a strip 23, to which the shoe is secured, as hasbeen before explained. The shield 13 is preferably formed with ribs 24and grooves 25, the ribs being hollow and both ribs and grooves beingperforated, as at 26. The ribs are serrated vertically, so as to formledges 27, each ledge overhanging a perforation 26 in the rib. Thisconstruction tends to prevent the perforations in the projecting ribsbeing-closed by the particles of the coal or ashes as the latter settlein the fuel-magazine. The construction of alternating grooves and hollowribs with numerous air-holes therein effectually prevents burning of theshield 18, it being remembered that the most intense heat does not occurat this point, but at the contracted neck at the bottom of the fire-box.Upon theinner side ofone of the air-duct sections, preferably the frontsection, as shown in dotted lines in Fig. 10, is secured a strip 151,extending the whole length of the air-duct on a slant from one end tothe other, said strip extending inwardly beneath the row of holes 21 andserving to catch any water that may be spilled upon the top of the stoveand conduct it on at the sides. For this purpose the duct section andstrip 151 are cast with corresponding indentations 152, fitted together,putty being placed in the angle at said indentations, and the sectionand strip are riveted or otherwise fastened together below saidindentations. The shoe 7 is in like manner designed and constructed toresist great heat and furnish an ample supply of air for combustion, andfor this purpose the front section is provided with ribs 28, registeringwith the ribs 24 of the shield, so as to form continuations of thelatter, so that liability of the coal to be arrested in its descent orfeed is avoided. Between the ribs 2S are air= holes 29. The shoe-tips Sare held in place by means of inwardly-extending flanges 30 31 ontheshoe-sections. Ofiheset-hefront flange30 is grooved on its under andrear surfaces, as shown at 32, Fig. 13, to form air-inlets to thefuel-box, the rear flange 31 not being so grooved. My preferred form ofshoe-tip is that shown in Figs. 14:, 14E and comprises a hollow block offire-brick held between the two sections of the shoe by engagement ofthe flanges 34E 35 with the flanges 30 31 of the shoe-sections, thegroove or underhung part 36 ofthe shoe-tip, against which the frontflange 30 abuts, being grooved, as shown, to register with grooves 37inthe rear and under surfaces of the flange 31 of the front shoe-sectionto provide air-passages from the air-duct to the fire-box. To facilitatethe escape of the air, the flange 30 is made thin, so as not to whollyfill the groove 37 in the front section below the flange 34. 1preferably employ a number of shoe-tips, each separably removable; but Imay also use a single tip extending the whole length of the shoe, eitherwith recesses, as shown in Fig. 15, similar to those formed by adjoiningseparable shoe-tips or without such recesses, as shown in Fig. 16.

Except for obvious necessary changes the construction is similar to thatof the separable shoe-tip. Such shoe-tip is provided on all sides withperforations leading to the firebox from the hollow interior of the tip,so that air can be very freely supplied to thoroughly complete thecombustion of the fuel. Above each row of holes 39, in the front side ofthe shoe-tip, Iprovide overhangingledges 40, similar to the ledges 27 inthe ribs of the shield, preventing said holes from being filled up bythe descending fuel. On each side of each separable tip is formed a ribor flange 41, these ribs on adjacent tips abutting against each other,so as to form an air-space above said ribs, said ribs being notched orgrooved vertically, as shown at 42, so as to form airpassages from saidspace to the fire-box. The pendent portion of the tip is considerablyunderhung at each side to allow free access ofthe air to the fuel at thecontracted neck. It also allows free passage of the gases of combustionfrom the fuel-box to the back fine 0. I further provide a damper forregulating the supply of air through the air-duct. This comprises aperforated bed 43, secured between the front and rearduct-sections, anda perforated slide 44, arrangedto be operated by a suitable handle atthe side of the stove, the perforations in these two parts being adaptedto register with each other when the damper is open to admit air to thepoint of maximum combustion. This construction enbles me to regulate thedraft or, if desired, entirely out off the supply in the air-duct,accomplishing by one operation what has heretofore required themanipulation of several dampers. I will now point out some of the advantages obtained from these improvements over the construct-ion shownin my former patents.

One of the most important features is the construction whereby the stovecan be readily adapted for different varieties of fuel. Very bituminouscoals need a more contracted throat than coals of the semi-anthracitevariety. It is therefore veryimportant to adapt the stove for thelocality to which it is to be shipped and the nature of the coalthereused or to be used with the stove, and this must be done with as littleexpense as possible and with the removal and substitution of as fewparts as possible. Upon an examination of the construction of the shoenow used by me it will be seen that the variation in the contractionofthe neck can be effected by pro viding a set of shoes of uniform patternin all respects, except as to the heightof the face of the shoe on whichthe ribs are situated. All that is-necessary then is to select a shoe ofsuch height as will give the desired contrac tion of the neck, the otherparts remaining the same. Hence by providing a removable shoe which fitswithin the air-duct and with the shoe tip or tips forms the lower edgeof the duct as a whole "I am enabled to adjust the height of said duct,and therefore the height of the flue-neck, as maybe desired fordifierent varieties of fuel. It is further to be observed that by myimprovements the interior of the fire-box is rendered extremely durablewhatever be the degree of heat which may-be obtained. At the point ofmaximum intensity shoe-tips of fire-clay are provided, which willwithstand a far greater heat than could be produced in a household stoveor furnace. The iron portion of the duct above the shoe-tips besidesbeing farther away from the point of extreme heatis protected from theaction of the heat by means of numerous air-passages, the indraft of airserving to reduce'the temperature at the sides of the fire-box. Bymaking the shoe-tips of fire-clay instead of iron not only do I providea more-durable construction, but I am enabled to furnishthe same with agreater number of air-holes than would be the case with iron tips byreason of the difficulty of casting the latter with numerous air-holesand the expense of drilling them. Furthermore, it is to be observed thatthe nails by which the shoe is suspended from the. air-duct and thebolts by which the shoe-sections are held together are all inclosed andshielded from the direct action of the fire. In actual trial with astove constructed in accordance with these improvements it has beenfound that after prolonged combustion and intense heat in such a stovethe iron parts of the duct were not even blistered, and the nails,bolts, and nuts above referred to showed substantially no change fromtheir original condition and were removed without difficulty.

A further important advantage attendant upon these improvements is theease with which the parts can be removed or replaced. Thus, shouldit bedesired to remove one of the shoe-tips, this can be done from the'frontof the stove by raising the shield 18, removing the nails from the holes16 17, when the shoe will drop down, then removing the bolts and nuts 9and 10, when the shoe-sections come apart and the shoe-tips can beremoved. To facilitate the fitting of the shoe-sections together, theyareprovided at the ends with registeringprojections and recesses 45 46.

By making the duct-sections to rest on the flanges on the sides of thestove instead of depending from a plate forming a separable portion'ofthe stove-top the duct can be more readily placed in position and thestove-plate is not weakened by the insertion of a piece extending almostthe whole width, as in my formerconstruction. In order to provide atight fit at thetop of the duct, I provide ribs 47, which depend fromthe under side of said plate and rest upon shoulders 48, formed in theair-duct sections. ribs 47 and theadjacent portions'of the duct,sections is packed with putty, as is usual, to make a tight joint. Otheradvantages arising'from the construction are that the ductsections areeasier to cast and are better supported on the stove. The necessity offitting The space between the at the bottom and the expense ofbolts,drilling holes, &c., at the top and bottom is avoided.

The end shields 51, which line the ends of the fire-box, have shoulders52 at the bottom to rest upon the fire-bed and are provided at the topwith screw-holes 53, wherewith to be secured to the sides of the stove.They have ribs 54:, which are disposed vertically for the most part andat the lower end turn with a curve to the rear, the effect being to turnthe currents of air toward the contracted neck at the bottom of theair-duct. For the same purpose these ribs have horizontal notches 55.

It is desirable occasionally to rake the fire at the bottom of the flueO at the back of the pendent air-duct or partition. For this purposecommunication is provided from the outside by means of an aperture inthe side of the stove to the rear of said partition between theoven-door and the open-work panel that covers the openings into the airduct. Through this aperture a poker may be inserted to rake the fire atthe backof the airduct. This opening is closed bya button 161, pivotedat the top at 162, so as to swing to the left under the open-work panel,which latter is undercut or beveled to receive the button thereunder.Said button is provided with a nib or lug 163 to push it by to close theaperture, and the side of the stove hasa stop 164 to limit the pivotalmovement of the button.

I claim 1. In a stove,the combination with the sides thereof providedwith integral inwardly-extending fianges,and a removable air-duct havinga sectional shoe-frame at its lower end, said shoe-frame supporting aperforated tip or tips, substantially as set forth.

2. In a stove,the combination with the sides I of the stove, providedwith integral inwardlyextending flanges which conform to theconfiguration of an air-duct supported by said flanges, and an air-ductmade in sections said air-duct supporting at its lower portion one or aseries of removable tips, substantially as described.

3. In a stove, the combination with the sides, of a fuel-magazinetherebetween, integral inwardly-extendingflanges projecting within thefuel-magazine and from said stove sides, a removable sectional air-ductsupported thereby, and adjustable means in the lower portion of theair-duct for supporting a removable tip or tips, substantially as setforth.

4. In a stove, the combination with the sides of the stove, of asectional air-duct'therebetween open at the ends, said sides being openopposite to said ends, and supports or seats on said sides arrangedaround said openings which support and lock said duct, substantially asdescribed.

5. In a stove, the combination with the sides of the stove havingopenings therein, of an air-duct therebetween opposite to said openingsand supported or seated on said sides, and a stove top having dependingflanges lying against the upper edges of each side of the duct,substantially as described.

6. In a stove, the combination with the sides of the stove havingopenings therein, of an air-duct therebetween opposite to said openings,and supported on said sides, and having shoulders at its upper edges,and a stove-top having depending flanges forming a joint with saidshoulders, substantially as described.

7. In a stove, the combination with the sides of the stove, of anair-duct therebetween, said sides being each provided with two flanges,one extending around the bottom of said duct and outside the same, andthe other inside the duct and below the upper portion of the same, saidduct being supported at each end on said flanges,substantially asdescribed.

8. In a stove, the combination with a pendent air-duct, the ends of theduct having airinlets, and a damper located Within said airduct belowthe air-inlets, substantially as described.

9. In a stove, the combination withapendent air-duct, extendingtransversely of the stove, a damper located across said air-duct,consisting of a stationary slotted section, supported by the air-duct,and a movable slotted section located on top of the stationarysection,capable of transverse movement by a handle from the outside ofthe stove, substantially as described.

10. In a stove, the combination of a stovetop plate having air inlets orperforations, an air-duct extending downwardly from said top plate belowsaid air-inlets, and a drip water or liquid conduit disposed Within theduct to catch water passing through said air-inlets and conduct the sameto the outside of the stove, substantially as described.

11. In a stove, the combination of the airduct open at the bottom, tipor tips removably secured in a shoe-frame locked to the side walls ofthe air-duct, and located in or across the openings, substantially asdescribed.

12. In a stove, the combination with a perforated pendent air-duct, aperforated corrugated shield located on the front side of said air-ductthe ridges of the corrugated shield having ledges which overhang theperforations, and air-chambers formed between the front wall of theair-duct and the extended. corrugations of the shield, substantially asde-' scribed.

13. A pendentair-duct provided with a sectional shoe detachably securedthereto for supporting one or more tips, substantially as described.

14. In a stove, the combination with the sides thereof, a pendentair-duct composed of sections, and a detachable sectional shoe with tipssecured thereto,substantially as set forth.

15. In a stove, the combination of the airduct open at the bottom andthe shoe-sections inserted in or across said openings, and removablysecured to said duct, said sections having projections extending withinsaid duct,

whereby said sections may be united, su bstantially as described.

16, In a stove, the combination of the airduct open at the bottom, andthe shoe-sections inserted in oracross said openings, and removablysecured to said air-duct, said sections. being provided with theinwardly and upwardly apertured lugs 11,12, for uniting the same,substantially as described;

17. In a stove, the combination of the airduct open at the bottom, andthe shoe inserted in or across said opening, said shoe having a pivotalor trunnion engagement with one side of the duct, and a positivedetachable connection with the opposite side, substantially asdescribed.

18. In a stove, the combination of the airduct open at the bottom, andthe shoe inserted h in or across said opening, said duct and shoe havingthe sockets 14 and half-trunnions 15 registering with each other at oneside, and a positive detachable connection at the opposite side,substantially as-described.

19. In a stove, the air-duct comprising two sections, the front sectionhaving a cut-away portion at the bottom,alongitudinal strip,.and

a hole above said strip, in combination with a shoe inserted in oracross said cut-away portion and secured to said strip, and a shieldcovering said hole, substantially-as described.-

20. A detachableshield for a pendent airduct, having a series ofvertically-arranged perforated corrugations the ridges of saidcorrugated shield having ledges which overhang the perforations saidshield being attached to the air-duct by a bolt projecting from thelatter through a perforation in the shield, and locked thereto bysuitable means, substantially as described.

. 21. In a stove, the combination of an airduct, a ribbedshieldtherefor, anda shoe carried at the bottom of said duct, said shoehav- 7 ing ribs continuous with the ribs of the shield,

substantially as described.

22. In a stove, the combination of an airduct, a shoe therefor, and atip held-in said shoe, said'shoe having :ribs extending substantiallyflush with the front face of said tip, substantially as described.

23. In astove, the combination of an air-. duct, a removable shoe heldthereto, and a removable tip held within said shoe, substan tially asdescribed.

24. In a stove, the combination of an air duct, a sectional'removableshoe held thereto, and a plurality of removable shoe-tips held'betweenthe sections ofthe shoe, substantially as described.

25. In a stove the combination of an airduct, flanged shoe-sections heldto said duct, and a shoe-tip supported by the flanges of theshoe-section's, substantially as described.

26. In a stove, the combination'of an airduct, shoe-sections held tosaid duct having terminal registering projections and recesses; fordistancing said shoe-sections, 'andashoetip held between said sections,substantially as described.

27. In a stove, the combination of an airduct, a shoe held to said ducthavingafront grooved flange, and a shoe-tip supported by said flange,and having grooves registering with the grooves of the flange,substantially as described.

28. In a stove, the combination with an airduct, .of a hollow perforatedshoe-tip of firebrick, or the like refractory material, secured on thelower edge of said duct and having a flange projecting forwardly undersaid duct to protect the same from the action of the heat, substantiallyas described.

29. In a stove, the combination with an airduct open at the bottom, of aplurality of hollow perforated shoe-tips arranged sideby side and havingair-exits formed between each other when placed within said duct,substantially as described. 1

30. In a stove, the combination with an airduct, of a plurality ofhollow perforated shoetips supported on the bottom of said duct, side byside, having registering grooves on their contiguous faces,substantially as described.

31. In a stove, the combination with an airduct of a hollow perforatedshoe-tip having front and rear flanges to support the same within theduct, and adjustable means secured to the duct for supporting saidshoetips, substantially as described.

In a stove, the combination with an air- V d dot, of aplurality ofshoe-tips arranged side by side therein, each having overhanging flangesat the sides, engaging the flanges of adjoining tips to form fluesthereunder, substantially as described.

33. In a stove, the combination of a fuelbed, a top plate, and anair-duct extending downward from the top plate to a short distance fromthe fuel-bed, to form'a contracted neck or fuel-passage, the contractionof said neck being proportioned to the character of 'fuel used, wherebydifierent varieties-of fuel can beused, substantially as described.

34. In a stove,the combination with a depending air-duct supported atthe sides of the stove, means in the front of the stove for regulatingthe draft, a damper arrangedin the flue behind the fuel-chamberfairpassages or ducts in side plates inside the'fuel-chamber,

said air-passages leading from near the top of the'chamber down andcurved into the ends of the air-duct, substantially as described.

35. In a stove, the combination with-the sides thereof, an air-duct madein-two sections, two flanges for supporting said duct projecting-fromandformed with said sides one of said supports extending from nearthe :top,down and then up and terminating-at a point a greater distance from thetop than the opposite side,-the other support starting between the upperendsof the former support and extending toward therear below the upperend of the rear portion of said former support, substantially asdescribed.

36. In a stove, the combination with the sides thereof, supportsprojecting from said sides, the shape of which conforms to theconfiguration of an air-duct supported thereby, a sectional air-ductseated or supported therein, the upper ends of said sections being sobent as to form a reduced neck when placed together, the lower centralportion of each section being cut out, and a shoe carrying a tip or tipslocated in the space in the bottom of the air-duct, substantially asdescribed.

37. In a stove, the combination with the sides, of supports integraltherewith for su pporting a removable air-duct, means for supporting aframe in the lower portion of the air-duct, and said frame supportingone or more tips, substantially as described.

38. The combination with a fuel-magazine of a stove divided by aremovable sectional air-duct, of a sectional frame in the lower portionof said air-duct, means for locking the same to said air-duct, andperforated shoetips locked and supported therein, said tips havinggrooves which register with grooves in the frame forming air-passageswhen said tips and frame are placed together, substantially as setforth.

39. Aframe fol-supporting tips atthe lower portion of a removableair-duct made in two sections, means for locking the parts of said frametogether, and means for locking shoe tip or tips therein, substantiallyas described.

40. In a stove, the combination with an'airduct, composed of sectionsand open at the bottom, the front section being of a skeleton formation,a shield secured to the front section, and means for supporting saidair-duct, substantially as described.

41. In astove, the combination with an airduct composed of sections andopen at the bottom, the front section being of skeleton formation, ashield secured to the front section, and means projecting from the stovesides for supporting and locking the ductsections in a fixed position,substantially as described.

42. In a stove, the combination with an airduct composed of sections andopen at the bottom, the front section being of skeleton formation, ashield secured to the front section, a shoe-frame supportedin said openbottom, one or a plurality of shoe-tips detachably secured to saidshoe-frame, and means for supporting and locking the duct-sections. in afixed position, substantially as described.

43. In a stove, the combination with an airduct composed of sections andopen at the bottom, the front section being of skeleton formation, ashield secured to the front section, a separable shoe frame havinginturned flanges at the lower end supported in said open bottom of theair-duct, one or a plurality of shoe-tips having overhanging flanges atthe upper ends said flanges resting on the inturncd flanges at the lowerend of the shoeframe, and means for supporting and looking the air-ductsections in a fixed position, substantially as described.

44. In a stove, the combination with the fuel-magazine, a separableair-duct open at its bottom and supported in said fuel-magazine, one ora series of perforated shoe-tips supported in the open end of theair-duct, means for supplying air to said air-duct, and means on thesides of the fuel-magazine for supplying air to the sides of the fuel,said means comprising a shield having a series of interrupteddownwardly-extending and rearwardly-curved ribs leading to the air-duct,substantially as described.

45. In a stove, the combination with the sides of the stove providedwith inwardly-extending flanges, and a removable sectional air-ductlocated between said sides, the airduct sections being locked togetherand supported by the flanges projecting from the stove sides,substantially as described.

46. In a stove, the combination with the sides of the stove providedwith inwardly-extending flanges, a removable sectional airduct locatedbetween said sides, the air-duct sections being locked together andsupported by the flanges projecting from the stove sides, adetachable'shoe-supporting frame locked in the open end of the air-duct,and a series of detachable shoe-tips supported in said shoeframe,substantially as described.

47. In a stove, the combination with a fuelmagazine, of a partition orair-duct therein,

and a shield secured to said air-duct or par tition, said shield beingprovided with a series of perforations Vertically arranged, and ledgesor overhanging flanges'projecting over said perforations, substantiallyas described.

48. In a stove, the combination with a fuelmagazine, of a partition orair-duct therein, a vertically-ribbed shield secured-to said airduct orpartition, said ribs being provided with a series of perforations, andledges or overhanging flanges projecting over said perforations,substantially as described.

49. In a stove, an air-duct, a shield attached to said air-duct,corrugations in said shield, said corrugations having perforations andledges or flanges overhanging said perforations.

50. In a stove, the combination with-an airduct, open at the bottom andmade in two sections, means having depending spaced-apart projectionssecured in the open bottom for distributing air to the fuel, means forsupporting said air-duct,and a corrugated shield attached to theair-duct, substantially as described.

51. In a stove, the combination with an airduct open at the bottom, aloosely-fitting tip secured in said open bottom forming air-exitsbetween the duct and tip, and a perforated shield attached to saidair-duct the shield being so positioned as to form an air-chamberbetween said shield and air-duct, substantially as described. I

52. In a stove, the combination of an air- IIO - duct, a pluralityoftips each comprising a re-;

duced securing end and a depending end, said depending ends adapted toform spaces or notches between each other when secured to the air-duct,substantially as described.

53. In astove, the combination with an airduct, and a plurality of tipseach comprising: a reduced securing end and depending lower end, saiddepending ends adapted to form spaces between each otherwhen secured tothe air-duct, and a series of openings communicating-with the air-ductbeing formedin the meeting ends of the tips, substantially as describedl 54. Ina store, the combination with a pendent air-duct supported bythe stove sides, means for supplying air to the ends of said duct, and aplurality of removable means in the lower end of said duct wherebyair-exits are formed therebetween for distributing air to the fuel,substantially as described.

55. In a stove, the combination with an airduct means for supportingsaid duct, means forsupplying air to the ends of said duct, a

plurality of perforated tips supported in the lower end of said duct andmeans in saidduct for regulating the exit of air through theperforations in said tips, substantially as described. Y i

56. In a stove, the combination with an aird not madein soctions,aperforated corrugated shield attached to the front section, formingair-passages between the duct and said shield,

a removable shoe-frame in the lower end of said duct, a plurality ofspaced-apart tips re movably secured in said shoe-frame formingair-exits between said tips, and means in the air-duct for regulatingthe admission of air, substantially as described.

57. In a stove, the combination with a fuel-- magazine, an air-duct,means for introducing air to said duct, means for introducing airto thefuel-magazine, meansremovably secured in the lower end of the air-ductfor supporting. a plurality of removable spaced-apart tips and means inthe air-duct for regulating the supply of air to the fuel-magazine,substantially as described.

58. In a stove, the combination with a fuelmagazine, an air-duct open atthe bottom, said air duct comprising a frame, a perforated shieldremovably secured to said frame, a shoe-frame hinged in the .bottomofsaidduct, and a series of tips removably secured in said frame,substantially as described.

59. In a stove, the combination with a fuelmagazine, an air-duct,meansfor supporting,

said duct, and means hinged in the lower portion of said duct fordistributing air to the fire-pot, substantially as described.-

60. In a stove, the combination with a fuelmagazine, an air-duct, meansfor supporting said duct, a shoe-frame hinged in the lower portion ofsaid duct, and a plurality of tips removably secured in the shoe-frame,substantially as described.

I 61. In a stove, the combination with a fuelmagazine, an air-duct, openat the bottom, a

sectional shoe-framehinged in said open end and having aseries ofnotches and pro ections, a plurality of tips locked in said secment withthe ribs on the shoe-frame, and

the notches in the tips and shoe-frame being" in continuity with eachother to form air-exits,

substantially as described.

62. In a stove, the combination with an air d not madein sections, aperforated corrugated shield attached to the. front section, formingair-passagesbetween the duct and saidshield,

-a removable shoe-frame in the lower end of said duct, a plurality ofspaced-apart shoe- 1 tips removably secur'edfin said shoe-frame Iforming air-exits between said tips, and'means for regulating theadmission of air, substantially as described.

63. In a stove, the combination with a fuelmagazine, an air-duct, meansfor introducing air to said duct, means for introducing a r to thefuel-magazine, means removably secured i in the lower end of theair-duct for support- I ing a plurality of removable spaced-apart tipsand means for regulating the supply'of,

air to the fuel-magazine, substantially as described.

64. In a stove, the combination with the,

sides of the stove provided with integral, in-

wardly-exte ndi n g flan ges, and a sec'tion al airduct located betweensaid sides,'said air-duct being supported and locked together by the 1integral flanges projecting from the stove sides, substantially asdescribed. 7

65. In a stove,the combination with the" sides of the stove providedwith integralinwardly-extending flanges, and a removable air-duct havinga sectional shoe-frame at its lower end, and removable means securedwithin said frame for distributing heatedjair,

substantially as described.

66. In a stove, the combination-with the,

sides of the stove provided with integral Vin-f wardly-extending flangesand a removable air-duct havinga removable shoe-frame at its lower end,and removable means secured within said frame fordistributing heatedair, substantially as described.

67. In a stove, the combination with a fuelmagazine, an air-duct open atthe bottom,

said air-duct comprising a frame, a perforated shield removably securedto said frame, a shoe-frame hinged in the bottom of said duct, and aseries of tips having air-spaces between each other and removablysecured in said frame, substantiallyas described.

68. In a stove, the combination with a fuelmagazine, an air-duct open atthe bottom,

means for introducing air to said duct, means for introducing air to thefuel-magazine, means secured in the lower end of the airduct forsupporting a plurality of removable spaced-apart tips, and means forregulating the supply of air to the fuel-magazine, substantially asdescribed.

69. In a stove, the combination with the sides of the stove providedwith integral inwardly-extending flanges, a removable airduct having ashoe-frame at its lower ends, and removable means within said frame fordistributing air, said means having a plurality of depending portionswhich form a series of spaces for the free liberation of the air,substantially as described.

70. 111 a stove, the combination with the sides of the stove providedwith integral inwardly-extending flanges, a removable airduct having ashoe-frame at its lower end, and a plurality of tips having spacesbetween each other which communicate with the air duct for the exit ofair, substantially as described.

71. In a stove, the combination with an aird uct, open at the bottom andmade in two sections, means for supporting said air-duct, a plurality ofdevices secured in the open bottom for distributing air to the fuel,said devices being spaced apart at the upper securing ends to formair-exits, and a shield attached to the air-duct, substantially asdescribed.

72. The combination with an air-duct made in two sections and supportsprojecting from the stove sides, the supportslocking and holding saidsections of the air-duct together, substantially as described.

73. Ina stove, the combination with apendent air-duct open at thebottom, tips remov ably secured in a shoe-frame locked to the duct,substantially as described.

74. In astove, the combination with an airduct, a tip or tips on thelower end of said duct, each of said tips having a flange projectingforwardly under said duct to protect the same from the action of theheat, substantially as described.

75. I11 a stove, the combination with a fuelmagazine, an air-duct, meansfor introducing air to said duct, means for introducing air to thefuel-magazine, means removably secured to the lower end of the air-ductfor supporting a plurality of removable spacedapart tips, and means forregulating the exit of air from the duct to the fuel-magazine,substantially as described.

76. In a stove, the combination with the sides of the stove, flangesprojecting inwardly from said sides and a removable air-duct having asectional shoe-frame at its lower end, and removable means securedwithin said frame for distributing heated air, substantially asdescribed.

77. In a stove, the combination with a fuelmagazine, an air-ductsupported therein, said air-duct being made in sections, supportsprojecting from the sides of the stove, said supports locking andholding the sections to- EDWIN R. OAI'I-OONE.

Witnesses W. 0. KING, J. M. VAN FLEET.

